Question: Dimensions of Physical Quantities

Learning Goal: To introduce the idea of physical dimensions and to learn how to find them.

Physical quantities are generally not purely numerical: They have a particular dimension or combination of dimensions associated with them. Thus, your height is not 74, but rather 74 inches, often expressed as 6 feet 2 inches. Although feet and inches are different units they have the samedimension--length.

Part A: Find the dimensions [V] of volume. Express your answer as powers of length ( l), mass ( m), and time ( t).

[V]=

Part B: Find the dimensions [v] of speed. Express your answer as powers of length ( l), mass ( m), and time ( t).

[v]=